Home / 18,384.82-27,581.55-5,237.38

Finding the Fourth Proportional to 18,384.82, 27,581.55 and 5,237.38

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Solution

The fourth proportional to 18,384.82, 27,581.55 and 5,237.38 is: 7,857.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,384.82 : 27,581.55 = 5,237.38 : x
  2. Step 2: Convert to fraction form
    18,384.82/27,581.55 = 5,237.38/x
  3. Step 3: Cross multiply
    18,384.82x = 27,581.55 × 5,237.38
  4. Step 4: Simplify right side
    18,384.82x = 144,455,058.34
  5. Step 5: Solve for x
    x = 144,455,058.34/18,384.82
  6. Step 6: Final answer
    x = 7,857.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.